We've had several older dogs come in at work with this problem. I'm assuming your vet has her overnight with IV antibiotics?
Sometimes the surgery can be avoided but most that I've seen have required removeing the offending organs.

As far as the mammory tumor goes, I would ask the vet in his or her opinion, how long they think she could sustain a quality of life without removal of the tumor. If it's a year or two that may be a better choice unless your looking at potential chemo/radiation.

By the way, of all of the older pyo dogs we've operated on, all of them did very well and made complete recoveries.

We also like to try to use natural products whenever possible. However, last year was a nightmare for fleas and all 4 of my dogs got infested. I ended up giving 3 of the dogs Comfortis (Timmy has a seizure disorder so we won't even try it with him. He was bathed and hand picked of all fleas). The Comfortis worked like a charm but I'd rather use it only when needed.

I'm glad to hear that she did indeed take the cat to the vet. You are a kind soul to speak up on the cat's behalf.
One thing I wanted to point out regarding people hesitant to take their animal to the vet because they are afraid to hear the animal needs to be "put down". When you love something, you don't want to hear bad news but by NOT seeking medical treatment you only guarantee that an animal won't recieve the advantage of a possible treatment, be it cheap or expensive.
I always advise people to at least go and then make an INFORMED decision. It's what our pets deserve.

Thank you for adopting a special needs dog. He's lucky someone so caring chose him!

I would talk to your vet about recommendations, just in case he or she has other ideas. If the vet recommends it, there are some really good ones available over the counter. Personally, I like 21st Century brand that Petsmart carries. I'm a bit cynical of the mail order companies as many of them import from China. Just make sure any type you buy comes from a country with good practices.

Most of the health problems you posted are enviromentally induced (parasites, infections, neglect) and oftentimes are found in shelter animals but usually they are "fixable".
The most common problem with purebreds are congenital. Goldens specifically are prone to certain cancers, hip dysplasia, skin issues and ear issues. Not to say they aren't great dogs because my Maddy was totally awesome!Proper testing will help eliminate some of the worries but again, certain breeds carry a much stronger tendency to certain issues.

If the urination happens while she is sleeping, her muscles have become slack and Proin may help.
If you haven't already done so, you may want to have a urinalysis run on her just to rule out any chance that there may be an infection adding to her incontinence.

Not to be a further downer but when I went into work this morning I found out a dog had been shot by a neighbor who was "tired of the dog coming on his property."
People sadden me so much sometimes. Poor dogs.

My heart is breaking for a clients 6 year old wonderful Golden Retriever who was admitted to our hospital this morning.
The owner knew she had "ate something" over the weekend and she continued to get sicker and sicker. He brought her in first thing this morning and poor little Molly had her head hung and one glance told you she felt miserable.
Long story short, I live in a somewhat rural area and many people feel that because they live on several acres that their dogs are safe to free roam. Someone in his area had set out radiator fluid to kill a stray dog. Molly is now dog number 2 to take the bait (antifreeze is very sweet).
She's not going to make it through the night, this I know. I just wanted to share this story to warn people that even though you may have the greatest, sweetest dog in the world, not everyone is going to be kind or well intentioned towards your animal.
Please keep your dog's leashed or contained for their safety.